Instruct: Classify Amazon reviews into positive or negative sentiment
Query: SPRI ES500R Xertube Resistance Band with Door Attachment

The SPRI ES5OOR Resistance Band with Door Attachment and Exercise Charts have been great for increasing and maintaining our muscle mass. They are easy to pack and take on a trip or car tours. They allow my husband and I to continue our exercise regime while we are away from home. Well worth the money. We ordered all three strengths. When they wear out we will order more.