When squatting establishing good form is essential before going too heavy. Using a squat block teaches trainers to bring their weight further forward on to their toes, which takes some of the strain off the lower back and greatly reduces knee strain. With the heels raised slightly the knees are not subjected to such an acute angle, as the ankles are slightly further foward.
Also very useful as a calf raise block. Simply stand near the top of the ramp and pivot on your toes to get a great stretch through the calves at the bottom of the lift.
Measures 70cm x 16cm x 5cm. Angle is 19 degrees. High density solid rubber construction, net weight 6kg.