It seems like it can also be attached to trekking poles from other manufacturers, so please check the specifications (see the second image). *Please note that there may be slight variations in the specifications. Brand new, unused. There are 2 pieces per bag, for a total of 4 pieces. Please understand that there may be initial scratches or minor scuffs due to being stored by a private individual. Will be sent in simple packaging. Price is not negotiable. Thank you very much.