Material: ABS & PC & TPE silicone
Made of high quality materials, safe, non-toxic and safe to use.
Accurate scale on plastic pipe can be used to observe penile enlargement.
There is a pressure gauge on the bottle. Internal pressure can be observed.
With pressure relief valve. Easy and simple operation, releasing pressure with one key.
Size: Full length 12.2inch/31cm, Maximum diameter 2.7in/6.9cm