Dimart 100Pcs 25mmx25mm Plastic Pipe End Caps Bung Tubing Insert Plugs Square 100Pcs 25mmx25mm Plastic Pipe End Caps Bung Tubing Insert Plugs Square Offer a neat &amp; safe finish to tube ends. Tube inserts can prevent dirt &amp; dust ingress. Made of black plastic with ribs to secure. Package Content : 100x TubingPlugs