... :TV652-003 Name:Plastic magic circle pilates ring circle yoga ring Feature:perfect quality Pilates ring,Pilate Ring, Pilates Diameter: From 30cm to 45cm ... ) 12" and 14" rings are available, biodegradable and nontoxic Pilate ring 2) Tones arm, AB muscles 3) Develops core abdominal muscles ... sport and daily life. TV652-003 Plastic magic circle pilates ring circle yoga ...