Medium Qarl -- Near Clear 31* silicone -- Q-678 stickers The larger insert will transfer

The larger insert will transfer vibrations better while the smaller insert may dull the vibrations more

Circumference of the shaft: 10 inches

they're mostly an aesthetic issue

but should not cause any discomfort when using the toy

This is recommended out of caution

Medium Qarl -- Near Clear 31* silicone -- Q-678 stickers The larger insert will transfer**Before buying, please familiarize yourself with our Store Policies and Shipping Policies. For information on silicone firmnesses, please visit the Our Silicone page.** Medium Qarl Firmness: Near Clear 31* Color: purple, pink, yellow, aqua Approximate Measurements: Total length: 8 inches Useable length: 6 inches Diameter of the head: 1. 4 inch Circumference of the head: 5 inches Widest shaft diameter: 2 inches Circumference of the shaft: 6. 25 inches