There are 2 types of inserts for v4 GR. These inserts are the open ended inserts that's designed for the divider "post" in the middle of a section. If you are looking for the end post and middle post, you will need to use: https://fencerail.com/products/guardrail-v4-circular-plastic-insert-1pc 36" Height Section needs 12x Plastic Inserts 42" Height Section needs 16x Plastic Inserts ------ 36" Height End Post needs 6x Plastic Inserts 42" Height End Post needs 8x Plastic Inserts Why replacement parts cost more: Our full kits are strategically positioned across warehouses throughout the country, which keeps logistics costs low. Replacement parts don't move in that volume — we have to specially track, ship, and manage them individually. That drives up warehouse fees, inbound and outbound handling, freight, and postage cost per unit.
