Ideal for hard surfaces or rocky trails, the quiet, non-marking Black Diamond Rubber Tech Tips avoid rock and trail scarring, and offer excellent grip and durability. Works as replacement tip for BD&';s Spring 2012 and later only trekking poles and all model Z-poles. Does not work with First Strike, Trail Back, Syncline poles. Sold in pairs. Tech Specs Weight Per Pair : 8 g (.3 oz)