Marine Rock Lockster®  
Description:
·Available to the Personal Floatation Device (PFD) industry. ·Meet UL standards. ·20mm,25mm,38mm are available.
Material: Acetal(POM)
Size:  Male/Female   
Class 2C/3C (For Children)    
3/4'' (20mm)   1-20093/1-20094  
Class 2,3,4H,5R(For Adults)    
1'' (25mm)  1-20095/1-20096  
1-1/2'' (38mm)  1-20097/1-20098  
PASSED:UL Code 1191