Oros indicators feature a unique, no-parts-lost design with a smooth, snag-free profile. Instead of using pegs or fasteners, the indicator closes securely around your leader, keeping everything streamlined and easy to adjust—without kinking your line.

Just unscrew the two halves, lay your leader in the slot of the screw in bottom half, and screw the top half back on until you feel a firm stop. The indicator pinches the line gently but securely—no knots or loops needed.

No. Oros indicators are designed to minimize kinking. The soft, foam surface and enclosed line path prevent sharp bends or abrasions.

Yes! Simply unscrew the indicator slightly, slide it to your desired position, then retighten. It's quick, easy, and doesn’t require removing it from your line.

Oros indicators come in five sizes to suit a wide range of rigs, water conditions, and casting needs. Each size has specific dimensions and approximate weight for easy matching:

• X-Small – .4 in / 11 mm (0.007 oz / 0.23 g)
  For ultralight setups, spring creeks, and technical presentations.
• Small – 0.6 inches / 16 mm (0.019 oz / 0.53 g)
  Ideal for light rigs and subtle takes in slower water.
• Medium – 0.8 in / 21 mm (0.028 oz / 0.81 g)
  The most versatile size for general-purpose nymphing.
• Large – 1.0 inches / 27 mm (0.056 oz / 1.6 g)
  Great for heavier flies, deeper drifts, or faster current.
• X-Large – 1.3 in / 33 mm (0.13 oz / 3.7 g)
  Maximum visibility and buoyancy for big water or heavy multi-fly rigs.

Absolutely. They’re engineered to float as much—or more—weight than comparable indicators on the market, giving you excellent support for heavy nymph rigs without sagging or submerging.

Yes. Oros indicators perform reliably in cold temperatures. The threaded closure is designed to resist freezing, and the foam material stays pliable even in icy conditions. For sub-freezing temps (below 32°F), we recommend applying a small amount of lubricant—like lip balm or a light wax—to the threads to prevent them from locking up.

Yes! Oros indicators are built to last. You can take them on and off your leader repeatedly with little wear and tear.

Oros indicators are available in both standard and technical color options to match a wide range of fishing conditions and personal preferences:

• Standard Colors: Orange, Pink, White — good visibility and versatile for most light and water conditions.
• Technical Colors: Hi-Vis Chartreuse, Glow-in-the-Dark (low-light or night fishing), and Anti-Glare Black (stealthy presentation for pressured or spooky fish).

Yes. Oros indicators are designed to minimize waste and reduce environmental impact. They feature a biodegradable additive in both the foam and hardware components, and their all-in-one construction eliminates small, easily lost parts—helping keep waterways clean.

To ensure a secure fit and optimal performance, we recommend the following minimum tippet or leader diameters for each size:

• X-Small: 6X (0.005") or thicker
• Small: 5X (0.006") or thicker
• Medium: 4X (0.007") or thicker
• Large: 3X (0.008") or thicker
• X-Large: 2X (0.009") or thicker

Using thinner line than recommended may result in slippage or reduced holding power.

If your Oros indicator is slipping or coming off the line, try the following steps:

1. Check Line Size: Ensure you're using the recommended minimum line weight for the size of the indicator. A line that's too thin may not create enough friction for a secure hold.

• X-Small: 6X or thicker
• Small: 5X or thicker
• Medium: 4X or thicker
• Large: 3X or thicker
• X-Large: 2X or thicker

2. Tighten the Indicator: Ensure the two halves of the indicator are tightly screwed together until you feel a firm stop

3. Reposition on the Line: Make sure that the line is running through the slot in the screw. 

4. Inspect for Damage: Make sure the indicator is not damaged or cracked. If there’s any damage to the threads, contact us for support or a replacement.

5. Consider adding a lubricant to the mating foam surfaces: Lubricants reduce friction between the compressing foam parts and make it easier to tighten down on the line.

If the issue persists after following these steps, please don’t hesitate to reach out for assistance.

To extend the life and performance of your Oros strike indicators, follow these simple care tips:

• Store Properly: Keep
  loose indicators in a container or soft fabric pocket. Avoid
  compressing them during storage, as the foam can deform if squished for
  extended periods.
• Avoid Extreme Heat: Prolonged
  exposure to high temperatures (like a hot car dashboard) may warp the
  foam or affect performance. Store in a cool, dry place when not in use.
• Cold Weather Tip: If
  you're fishing in freezing conditions (32°F / 0°C or below), apply a
  small amount of lubricant—like lip balm or wax—to the threads. This
  prevents them from freezing shut and keeps adjustment smooth.

Proper care ensures your indicators stay buoyant, secure, and ready for many days on the water.