Our retractable tape measures are made of ABS plastic housing and carbon steel for compression resistance and durability. There is a portable plastic box on the outside with a key chain that is 39.4 inches long and perfectly suited to your material measurement requirements. Using a high elastic ruler spring, pull the tape out and let go of the hand and it will contract. The tape measure is portable, easy to use, easy to carry, easy to measure and so on. Add your logo or message custom. There is an express service. 1 location includes the shipping cost to US. Orders of 1,0000 pieces or greater are eligible for sea shipping. 100% guarantee for quality. Rush Service.