For use with the ergoflo pro, the 20 inch (51 cm) ergofló colon cleanser goes even deeper for extra confidence. Made of medical grade India rubber, the colon cleanse is compatible with the ergoflo pro. Perfect Fit Brand Products are sold, and intended for use strictly as adult novelty toys for entertainment. They are not intended for medical use and have not been clinically tested. No medical claims are warranted or implied by the use of these products. This nozzle is an FDA – registered medical device. Materials: made of India rubber and nylon plastic in China. Meets EN71-3 standards.