Alstar 7 pair dust caps set for 1.25" telescope eyepiece, barlow lens, diagonal, t adapter and other telescope accessories including 7 dust caps and 7 dust plugs. This set of 7 pairs of dust caps, which can effectively protect your products from dust, scratches, and other impacts. each pair contains 1 cap and 1 plug. The dust caps can be easily pushed in and pulled out, but it will not fall off on its own. there is a special horizontal bar in the center of the dust plug that can be easily grasped by hand. Made of high quality plastic with strong toughness, resistant and long lasting, it will not cause damage to your own products. Lightweight: Convenient to carry whether going out or traveling long distances