PROBLEM TO BE SOLVED: To easily stabilize a posture at the start of training for a beginner of muscle training without receiving assistance from a caregiver, and even a skilled person can obtain a more efficient training effect, and a bench. To provide exercise aids that can also be used for angle-variable Incline Bench training. SOLUTION: In strength training, a cylinder made of a material having shock absorption and resilience or a cylinder to facilitate attachment to a body to a trainer or sticking to a training device and stable and efficient training. The semi-cylindrical cushion member 2 was enclosed by a surface layer member 3 provided with a pair of fixing belts 4 or two sets of elastic bands. [Selection diagram] Fig. 1
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