Yes, strapless strap-ons come in various sizes to accommodate different preferences and comfort levels. When selecting a size, consider the length and girth of both the penetrative end and the bulbous end for the wearer. It's essential to choose a size that is comfortable for both partners, so be sure to communicate with your partner about their preferences and limitations. If you're new to using strapless strap-ons, you may want to start with a smaller size and gradually work your way up as you become more comfortable and experienced.