It can also be attached to trekking poles from other manufacturers, so please check the specifications (see the second image). *Please allow for slight variations in specifications. This item is new and unused. This is a set of 4 pieces, with 2 pieces per bag. Please understand that this is stored by an amateur, so there may be initial scratches or minor scuffs. It will be shipped in simple packaging. Price is firm. Thank you very much.´`*