With these Clover Graduated Anal Beads there is definitely no luck needed in ensuring they get the job done to maximum effect. The pliable probe offers 6.5 inches of insertable shaft that increases in size from 0.75 inches to 1.1 inches at the base of the shaft. As its name suggests, the Clover Graduated Anal Beads features a clover shaped finger loop that allows you greater control when probing your passage with the shaft. Made by Seven Creations, the Clover Anal Probe is slightly stiffer than normal to offer greater levels of stimulation to that of a highly flexible shaft.