All our products are handmade by us at SlinkySkin we use 0.4 mm Radical Rubber latex
We use discreet shipping packaging.
Size is dependant on neck size Small: upto 13 1/2 (34 cm) Medium:between 13 1/2 and 15 1/2 (34cm -39cm) Large:between 15 1/2 and 16 1/2 (39cm - 42cm)