Are you looking for a professional. yet affordable locking hole cover? Are you in search of a sturdy. trustworthy tool that can do multiple works at once? If yes. look no further Our professional locking hole cover must meet you needs. It is one of the best choices for you.Features- Color: Black.- Material: Nylon.- Size: 1.50X1.00X1.00cm/0.59X0X0in.- Can be used as waterproof plugs. sealing plugs. test tube plugs. rubber bulkheads. caps. cylinder plug heads. threaded rubber plugs.- Good sealing of waterproof and dustproof; Nylon material. with buffering. shocks absorption. - No special tools are required just a push fit. is easy to install.- The wings on these plugs expand against the sides of a hole to lock them in place. - These dome plugs are finishing plugs for unneeded or unused holes in chassis or other surfaces. Packing list100 x Locking Hole Cover