TRANSPARENT ABS plastic cylinder, safe and non-poisonous. One handed trigger operation with a non-crimp hose creates maximum suction with minimum effort. Vacuum relief valve is conveniently located at the pump handle. Safe and durable. Product Description It is the high-quality vacuum pump be strong!! 100% visible effect useful in organ development and erectile dysfunction(ed). This is based on vacuum chamber technology. Vacuum pulls the organ and makes it strong and enlarged. This is a health device not a toy of any kind. Special; No need to remove hair.