This harness is fully adjustable thanks to the buckles on the hips and on the crotch. It has 3 rings of different sizes, 45-50-55 mm, O-shaped perfect to put a dildo (not included). Try the suction cup R9147 and the dildos R9136, R9137, R9138, R9139 and R9140. Measurement of the hip: from 80 cm to 105 cm.