Aetertek Replacement/Spare Assembly Kit Waterproof Rechargeable Trainer Dog Training Shock Collar System Metal prongs as replacement or spare sets. Comes with short and long prongs to fit short and long coated dogs Fits Aetertek AT-211,AT-215, AT-216S, AT-218, AT-219, BUT NOT for AT-216D,AT-918C,AT-919C. Also works with all easypet, koolkani models and Groovypets GP-330 model(not for other groovypets models).