Note: Please allow 1?3cm error due to manual measurement. Thanks for your understanding. specification: Item Type: Foot Rocker_x000D_Size: Approx. 26 x 13cm/10.2 x 5.1in _x000D_Function:_x000D_Stretching And Strengthening: Stretching device keeps foot in place to stretch and strengthen muscles, ligaments and tendons of foot and calf._x000D__x000D_Relieve Pain: Very suitable for plantar fasciitis, Achilles tendinitis, calf muscles, foot pain and tibia._x000D__x000D_Provides Deep Stretch: Provides stretchability for plantar fasciitis and other foot pain, as well as shinitis, calf and other calf pain._x000D__x000D_Increase Flexibility: To help prevent and treat injuries, the rocker increases the flexibility and strength of feet and calves._x000D__x000D_Anti slip rocker bottom: The anti slip rocker maintains a stable foot position when stretched. It is recommended to use with sturdy sports shoes. Features: 1Relieve Foot Pain: Foot tension board can deepen lower leg muscles, tendons or ligaments, reduce muscle tension and reduce pain caused by plantar fasciitis, Achilles tendinitis, ankle sprains, arch pain and other pains. 2Effectively Stretch Feet: Foot stretch board can safely stretch feet of any size to meet your various needs, gently and evenly stretch the feet, relieve pain, improve circulation and reduce fatigue. 3Anti Slip Design: Rubber anti slip strip at bottom ensures that the lacing plate placed on any surface will not slide, and the raised baffle on the heel can hold the heel and prevent foot from slipping. 4Ergonomic Foot Pedal: Foot pedal is designed with curved and non slip stripes, which can keep foot in the proper position and stretch it safely and effectively, gap between feet ensures that board can stretch to ankle. 5Relieve Discomfort: Stretch plate encourages correct walking posture, safely stretches muscles, improves the range of motion and flexibility of feet, and minimizes discomfort of heels, legs and back. PackageList: 1 x Foot Rocker 1 x Manual