Grommets are made from a nitrile compound and are generally flared or collared on each side, this allows them to stay in place. 

95 Piece Blanking and Wiring Kits are available. The contents of each kit contains a selection of various grommets with quantity amounts varying.

Blanking Kit includes the following size grommets: 8mm (5/16"), 10mm (3/8"), 13mm (1/2"), 16mm (5/8"), 19mm (3/4"), 22mm (7/8"), 25mm (1"), 29mm (1 1/8").

Wiring Kit Contents includes the following size grommets: 7-3mm, 8-5mm, 13-6mm, 14-8mm, 13-10mm, 14-10mm, 25-16mm, 19-10mm, 19-11mm, 17-13mm, 24-19mm and 32-23mm.