[. . . ] Update 01/2004 The Inserts for the Beiter Sight Tunnel can be easily installed and extracted with the Sight Pin Tool. [. . . ] Clip in the inserts #7 and #17 horizontal so the vibrations of the Fluor Pins can be absorbed better. Fixation on the sight: When in conjunction with the Sight Tunnel, the O-Rings are working as a friction, allowing the thread to be turned without loosing any nuts!(pic. 1) O-Rings (OR4X2 for 8-32 or M4, OR5X2 for 10-32) absorb vibrations on Sight Tunnel and Scopes, thereby preventing them working loose. HINTS: Remove the Fluor Pin from the insert, every time you pack away your bow. It is best to remove the Pin every time, so the plastic will not be affected. Otherwise it is possible that it could drop from the Sight Tunnel while shooting. To preserve the Pin, it is a good idea to simply put it into your Beiter Armguard! [. . . ] Even if the Level can not be used during FITA tournaments (but for example in IFAA tournaments!), it can be a very important tool during training sessions to learn to hold the bow straight or to learn to shoot better in Field Tournaments. Code-numbers: - VTWWGRKL-> Level for Sight Tunnel Ø12, Green/Clear Body - VTWWGRSW-> Level for Sight Tunnel Ø12, Green/Black Body Werner Beiter Daimlerstr. [. . . ]