Ready to take a ride into extreme anal exploration? The Hung Rider Initiation: Anal Training Kit will help you safety work your way up to major length and girth! Start small and soon you will be ready to go large. Hung Rider plugs are made of PVC. Each plug is tapered for comfortable insertion and is equipped with a neck to hold it in place and a firm base for anal safety. Lube them up and get ready for a WILD RIDE! From Blush Novelites. Small butt plug length 4 inches, 3.6 inches insertable, girth 1.25 inches. Medium butt plug length 4.75 inches, 4.25 inches insertable, girth 1.5 inches. Large butt plug length 6.5 inches, 6 inches insertable, girth 1.75 inches.