The COBA (COunter BAlance) Board is scientifically proven to activate & isolate glute and hamstring muscles instead of overtraining quads and putting stress on knees. Our patented 7° incline and toe raise puts you in the optimal position (with your weight back on your heels) to target your posterior chain muscles. Top 8 glute exercises using 1 device: squats, lunges, deadlifts, hip-thrusts, glute bridges, kickbacks, donkey kicks & adductors for your best butt ever – in just 10 minutes a day!