Press-fit plastic covers for custom holes in solid-panel cribs, made so you can run fabric ties or straps through. 

Each hole uses two covers, optionally secured with wood glue. 

Sized for 18 mm particle board, for a hole with 5 mm radius. Height is adjustable for smaller or wider board or snug fit. 

These covers protect the ties, keep edges smooth, look good and let you use crib bumpers and liners that were designed for slatted cribs.