Yaphy Replacement Bands for the Soloflex Muscle Machine Set Includes: (2) 50lb Bands (2) 25lb Bands (2) 10lb Bands (2) 5lb Bands (2) 2.5lb Bands Total of 185lbs of Weight! These are brand new aftermarket replacement bands made for the Soloflex machiney! The bands are made of a composite rubber material that is made for stretching. There is a thick rubber ring around the hole where the bands tend to rip for extra reinforcement. They are built to last and made for durability. Thick Rubber, Durable, New Design, Made for longer lasting usage Made of composite rubber for durability Perfect fit for Soloflex machines Printed marking showing the weight resistance The dimensions of each band are below: 50lb Band: 9"L x 2 3/4"W x 1"H. The diameter of the hole is 1" 25lb Band: 8.5"L x 2 1/2"W x 1"H. The diameter of the hole is 1"10lb Band: 8.5"L x 2 1/2"W x 1/2"H. The diameter of the hole is 1" 5lb Band: 8.5"L x 2 1/2"W x 1/2"H. The diameter of the hole is 1"2.5lb Band: 8.5"L x 2 1/4"W x 1/4"H. The diameter of the hole is 1"