Quick view Karver 2:1/3:1 Blocks Accessories for furlers. 2:1/ 3:1 BLOCKS REFERENCE MODEL DESCRIPTION PF100030 KF1 2:1/3:1 Aluminium Swivel Block for KF1 PF090030 KF2 2:1/3:1 Aluminium Swivel Block for KF2 PF080030 KF5 2:1/3:1 Aluminium Swivel Block for KF5 PF110030 KF8... MSRP: Was: Now: $354.74 - $3,014.79 Choose Options Compare