The best plunger in the world. 128 of 128 archers using Beiter plunger in 2016 London Olympic. The plunger helps archers reach world record, world champion and Olympic gold medel. 
The Beiter Plunger for Olympic-style recurve bows adjusts to suit your shooting style. It comes in short varieties for archers who use stick-on rests, and in longer lengths for those who have bolt-on rests. This plunger comes with springs of different tensions, and you can then micro-tune any of the springs so the plunger matches your form.

• Made from German precision machined parts
• Threaded cylinder is made from high grade refined steel, springs from stainless
harmonic steel, notching scale cylinder and nut from anodized aluminum
• Micro-click spring tension adjustment allows for exact settings time after time
• Includes: spanner, open spanner, springs (.045, 0.60, .070), pins (34mm, 36mm) and 1.5mm allen wrench
 
17.5-23mm lenght and 5/16-24 thread can fit most of modern recuver bows.