Saddle staplers have an inverted V-shaped saddle for stapling pre-fold sheets to make booklets. Many staplers have an anvil in the form of a "pinning" or "stapling" switch. Staplers are also used in vertical banded gastroplasty surgery (popularly known as "stomach stapling"). The stapling plate is known as the anvil. Stomach stapling is a restrictive technique for managing obesity. Olivas spent two hours stapling and pinning down a thermal blanket on the OMS pod. The technique was developed from a similar stapling procedure for prolapsing hemorrhoids. Pocketing has a lower rate of success than stapling. When a bar is used, pocketing looks quite similar to flesh stapling. She later lost 175 pounds via stomach stapling. One of the disadvantages of stapling is that you cannot buy one without the other. OCSP stapling is a way to verify validity without disclosing browsing behavior to the CA. OCSP stapling support is being progressively implemented. OCSP stapling is aimed at addressing these issues with the original OCSP implementation. While many web servers advertise support for OCSP stapling, implementations are not always reliable.