GirthGuide

Guides

Short, plain explanations of how toy sizing works.

Choosing your first sizeA calm, practical guide to picking a first toy size: start smaller than you think, use real measurements, and what firmness changes.How toy brands measure differentlyCircumference or diameter, usable or overall length, head or widest point: why size charts from different makers don't line up, and how to convert between them.How to read girth at depthWhy the biggest number on a size chart tells you less than where that girth sits, and how to read a girth-at-depth chart.Sizing up comfortablyHow to move to a bigger toy without discomfort: small steps, one change at a time, warming up, and knowing when to stop.Why the next size up feels so much biggerA one-inch step in girth is a bigger jump than it sounds. Here is the simple math, and why size steps in most toy lines change three things at once.