The St. Andrew’s Cross and the spanking bench are the most common pieces of BDSM furniture. Saltires are versatile and easy to manufacture. They are usually firmly attached to a wall, and is distinguished from a BDSM-style Catherine Wheel, which has a central hinge and allows occupants to be turned upside down. The submissive may be attached to the cross with either the back or front facing the cross. Being restrained facing the cross is the position often used for whipping. Being attached with one’s back to the cross is usually more of a sexual bondage position or used for sexual teasing.