*New Designed Device by Jinfu
*Reciprocating Escape Descent Device for Tall Building
*Mechanical Pulley
*Aviation Wire Sliding Rope:Safe, Anti-water, Anti-oil and Anti-Fire
*Easy to use: Users can learn to use it through the video
Welcome to SHANDONG JINGLE SAFETY TECHNOLOGY CO.,LTD.
0086-534-6525555/6525666 
jinfutools@hotmail.com Cn