HEAVY DUTY WITH MAXIMUM COMFORTnADJUSTABLE TO FIT ANY DOORWAYnEASY TO ASSEMBLEnExtra Heavy-Duty Steel Pull Up Bar, Soft Yet Durable Foam Covered Bar for Comfort. Excellent for Aerobic Conditioning, Mount it High for Chin-Ups, Mount it Low for Sit-Ups And Dips Making This More Than Just a Pull Up Bar Fully Adjustable Pull Up Bar Door Way, Extends From 25" to 36" Includes Screw-In Brackets For Safe, Secure Mounting. Metal Brackets are Designed to Be Screwed in to Door Frame For Pullups, ChinUps While Black Rubber Brackets are Designed for Low Weight, Dips, Sit Ups.