Plastic Jump Cups Size:One Size Each side works independently from

Each side works independently from the port for increased lateral flexion

Fully adjustable at both cheeks

see the MB 27PB

Length: 3 3/16" - 3 5/8"

Plastic Jump Cups Size:One Size Each side works independently fromThe Plastic Jump Cups are very light weight yet tough and durable black plastic. Accurately shaped to fit the regular 4" x 4" uprights of most standards or wings. The rounded cup side is 2" deep and will securely hold rails in place if the horse just rubs the fence, but the rails will roll out for safety if sharply hit. Turn it over and you have a flat cup, perfect for securing gates, planks or panels. The flat side is perfect when one wants the light