Put an end to the constant reminder to “keep your elbows-in” with this revolutionary training tool. Improves your technique, form and ultimately your punching power because you will be throwing every punch accurately. Easily slips on and off with rep-designed arm loops. Constructed with a semi-elastic/polyester material that has a slight give, making it more comfortable, useful for various size fighters and also washable. Available in three sizes. Colors may vary.