Sunny Health & Fitness Multi Thigh Trimmer Works on hips, thighs, upper arms, breast & chest Light and compact Excellent for toning, strengthening and building muscles in your inner and outer thighs. Push against the challenging resistance created by the tension in the thigh strengthening tool. Excellent for toning, strengthening and building muscles in your inner and outer thighs. Push against the challenging resistance created by the tension in the thigh strengthening tool. The body building expander is also great for arm strengthening. Excellent fitness tool for beginners and advanced fitness enthusiasts looking to become better and feel great!