Extraoral latex rubber rings, strong, ø 12.7 mm, 1500 pieces

Maximum elasticity and freedom from fatigue. The rubber rings are sorted by symbols according to size and thickness. This means that each type can be identified quickly and without confusion. Tensile forces: The specified tensile forces come into effect when the inner diameter of the individual rings is stretched three times. Contents: 30 x 100 rings = 3000 pieces or 30 x 50 rings = 1500 pieces