Take it to the Max with California Exotic Novelties' Max Results Pump. This enhancement pump has a powerful master grip handle, a transparent smoked cylinder with incremental measures, flexible hose and a soft, silicone donut, all designed to deliver the max results for you. Features include: quick release purge valve; newly designed master grip finger pull hand pump; flanged base for use with or without the included Silicone tapered sleeve. ABS with Silver Plating (handle), Phthalate free PVC (hose), SAN (cylinder), Silicone (sleeve). 9.25â   cylinder; 2.25â   diameter.