Innovation at it's finest! Track Star "Power Blocks" 90 degree connectors are interchangeable from 4mm to 5mm in seconds! No longer the need to solder and resolder connectors for battery fitment between the two sizes. The solder barrel slides out of the housing for soldering. Reinsert and screw on the desired bullet connection.
The pair come with:
2) 4mm connectors
2) 5mm connectors
2) Solder Barrels
1) Positive housing
1) Negative housing
1) Red O-ring
1) Black O-ring