Magnet Don Bs/C-ring 15mm

Ballstretcher diameters : 36 mm (226 g) and 39 mm (234 g)

Cockring diameters : 45 (264 g), 51 (275 g) and 55 mm (290 g)

Without screws and without key.

Stretch the balls gradually by adding additional rings. 

Strong magnets avoid solvents or water, use only alcohol to clean.