XL is not a standard measurement
Labels such as monster, giant or XL vary between products. Always check the maximum diameter and usable length in the specifications.
Fantasy shapes and pronounced textures
Ridges, knots, heads and non-realistic contours change how a toy inserts and moves. The widest transition can matter more than total length.
Material and flexibility
Soft materials compress and bend to some degree, while firmer formulas retain more of their stated shape. Compare material information and product weight.
Preparation for large toys
Progress gradually, use plenty of compatible lubricant and maintain control through a secure base or handle. Stop immediately if discomfort becomes painful.