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The Benefits of Using a Thrusting Machine The major muscles of your back can be worked effectively with thrusting machines. They are also known as glute boxes and hip thrusters. They target the gluteus maximus or butt, as well as hamstrings, as well as the core. The Buck is smaller and cheaper than other thrusting sex toy, which can cost up to $1,000. It also comes with a safety feature that cuts power to the motor when you press the red button. What is a Thrusting Machine (TM)? A thrusti