M:
 Improve the erection of the penis with this Fröhle penis pump. With regular use, male potency can be significantly improved. In some cases, it can also help with erectile dysfunction. This penis pump is transparent so you can keep a close eye on how the result is progressing. The material is flexible and has a nice fit. This is a good model for beginners. The penis pump includes connecting hose, valve and ball pump and is easy to clean. The length of the sleeve is 18 cm and the diameter 4.5 cm.
 L:
 Improve the erection of the penis with this Fröhle penis pump. With regular use, male potency can be significantly improved. In some cases, it can also help with erectile dysfunction. This penis pump is transparent so you can keep a close eye on how the result is progressing. The material is flexible and has a nice fit. This is a good model for beginners. The penis pump includes connecting hose, valve and ball pump and is easy to clean. The length of the sleeve is 20 cm and the diameter 5.5 cm.