Check the listing for details. Fortress Interlock Safety DMSK1-0-1-MLSS Single Module Key Trapping w/ Key. Condition: New – Open box. Listed at 199.99 USD. THIS IS A Fortress Safety DMSK1-0-1-MLSS Single Interlock Module Key Trapping w/ Key TC4-1A. APPEARS NEW NEVER USED. COMES WITH KEY. BOX ROUGH OPENED FOR PICS. (STOCK-LOC- 104-A)SPECS:PART#- DMSK1-0-1-MLSSMANUFACTURER- FORTRESS INTERLOCKSCATEGORY- SAFETY SYSTEMSITEM- SAFETY INTERLOCK SWITCH SINGLE MODULEINCLUDES- SINGLE INTERLOCK MODULE AND KEY We have been in business since 1990 and a spotless Ebay seller for 20 years. We have opened up this account to diversify and showcase different products. Note shipping is to the contiguous 48 states otherwise a shipping fee will apply, which may include PO and APO Boxes We reserve the right to end any listing without notice due to being offered locally. We pride ourselves in fast shipping services shipping the same day payment is received. THANK YOU FOR SHOPPING NCS!