~ Brand new AB Rocket Attachment Abdominal Trainer AB ROCKET NOT INCLUDED Product description: 1 FLEX MASTER (without backrest) Strengthen your arm muscles and sculpt your shoulders with Flex Master, thanks to 7 toning exercises without weights. So among the illustrated exercises offered in the guide you can target your biceps, your pectorals, your triceps or more generally the shoulder area. Always safe for your back, the exercises offered are done in a seated position without lifting heavy loads. All exercises are done using the resistance bands included in your package and specially designed for your comfort. To work the Abdominals. The Flex Master can be used without the backrest (AB Rocket), so if you don't have it, you can do exercises only with this Flex Master. https://youtu.be/_Rvlroj7M3I SEND WITH A TRACKING NUMBER FROM FRANCE WITHIN 5 DAYS