PREFERRED MATERIAL ----- Multifunctional Timing Plank Trainer provides more stable support and safe exercise, it also provides comfort for your arms, allowing you to lean more during plank exercises. Safe and secure-----Multi-functional timing plank support trainer is specially designed for trigonometry, timing, and countdown. You can plan the exercise time reasonably, monitor it in real time, and control the exercise time yourself. The counting designuses a button battery, model LR1130. Comfort Grip ----- Plank Trainer with Timer Angular Mechanics Triangle features TPE Soft Grip, Comfortable Foam Grip, Easy to Grip, Comfortable Training, Patented Design and Contoured Cushion Pad, Gives You a Relief by Relieving Joint Pressure Providepersonalized support. ADJUSTABLE ANGLE ----- The timing board trainer contracts the abdominal muscles through a full range of motion and prevents the back from arching. Full-body movement makes workouts more effective. GREAT GIFT ----- Giving the multifunctional plank trainer as a gift to your friends or sharing it with those who want to exercise will greatly promote the health of those around you. Products from LUOLV's store