What's in the box:

9Pcs Understring Radius Gauges Guitar Bass Strings Repair Polish T-shaped Measurement (Standard)

The 9pcs understring radius gauges of different sizes are used to measure radius under strings, accurately configure your guitar bridge saddles to fit the fingerboard radius.

Features:
9 radius sizes: 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20".
Made of stainless steel, durable enough.
Engraved with radian on the ruler.
Easy to measure radius under strings.
Accurately configure your guitar bridge saddles to fit the fingerboard radius.

Specifications:
Material: Stainless steel
Radius: 7.25" 9.5" 10" 12" 14" 15" 16" 17" 20"
Item Length: 70mm / 2.76in
Package Weight: 41g / 1.45ounces
Package Size: 100 * 100 * 15mm / 3.94 * 3.94 * 0.59in

Packing List:
9 * Understring Radius Gauges