The SI Flip Switch is a lightweight, low profile ambidextrous safety. Created to fill the gap between our basic but functional Hex Selector Switch and the larger go-fast Strike Switch, the Flip Switch features carefully designed ergonomics to facilitate positive, but comfortable engagement and disengagement even when wet despite its compact, low drag size. Includes- two Shaft screws, 60/90 Shaft, End Cap, right Side Flip Switch and left Side Flip Switch.