Our best selling Trans Masc Pump got an upgrade! With more cylinders you can find the right size for you. A SIZE for EVERYONE! This kit includes 3 uniquely sized cylinders, a pump and optional measuring tape decals. Designed for queer, trans masculine, and non binary bodies, this pump increases sensation and stimulation to the genitals. Our pump features custom translucent cylinders that are shockingly comfortable due to their wide flanged bases. The easy to use design ensures that everyone can achieve instant and comfortable growth. This kit includes 3 sizes of cylinders, and one pump with a release valve. Interior dimensions of the small cylinder: 2″ long 1″ diameter Interior dimensions of the medium cylinder : 3″ long 1.25″ diameter Interior dimensions of the large cylinder: 4″ long 1.25″ diameter *note the medium in this kit is the same size as the single pump in the Trans Masc Pump