FknMint "DuraMint" Silicone Sleeves

Premium durable silicone sleeves to be used in combination with a vacuum cup.

Super durable, super elastic form-fitting sleeves to create a perfect air-tight seal while extending.

SIZING

Based on flaccid, stretched girth (circumference):

less than 3.49" (88mm): 21mm sleeve

from 3.5" (89mm) to 3.74" (95mm): 23mm sleeve

greater than 3.75" (95mm): 25mm sleeve