Simply remove the receiver unit from your pet's old receiver collar and place it on the new collar strap. Not compatible with bark control collars as it only has 2 holes.

Features:

• Fits neck sizes up to 24 inches
• 3/4 inch wide strap
• Pre-drilled mounting holes are 5/16 inches diameter and are 1-3/16 inches apart
• Compatible with: PTPIT-003, PTPIR-003-10K, PTPFS-003, PUL-250,PUL-275, PIG00-13737, PIF-275-19, PRF-275-19, PIG00-11116, PIF00-14228