For added bite on hard or slippery surfaces, the Black Diamond Carbide Tech-Tips provide durable and secure performance. Works as replacement tip for our Spring 2012 and later only trekking poles and all model Z-poles. Does not work with First Strike, Trail Back, Syncline poles, Trail Explorer 3. Sold in pairs.Specs Weight: 0.71 Weight Per Pair: 8 g (.3 oz)