4 Pack Recessed Drink Holder Inserts With Drain For Marine Boat RV Camper Universal 3.5 Inch ID No Screws Needed Durable Plastic Cup Holder Insert With Drain Holes For Moisture Control

4-Pack Recessed Drink Holders with Drain for Boats & RVs
✔️ 4-pack recessed cup holders, 3.5 inch ID, drain holes, no screws

These recessed drink holder inserts provide a moisture-control solution for boats, RVs, campers, and daily-use interiors. Made from durable plastic, they fit universal 3.5 inch ID cups with a 4.25 inch OD flange and install without screws.

✅ Durable black plastic cup holder inserts with a smooth, easy-to-clean surface
✅ Recessed design keeps cups secure on tables, dashboards, or counters
✅ Universal 3.5 inch ID with 4.25 inch OD flange for versatile mounting
✅ Bottom drain holes help vent moisture and prevent pooling

💡 What is a recessed drink holder used for on boats and RVs?

This handy accessory helps keep drinks stable and surfaces dry in mobile settings. - fits 3.5 inch ID cups with a 4.25 inch OD flange - screw-free installation, quick to mount on tables, dashboards, or counters - bottom drain holes prevent moisture buildup - suitable for boats, RVs, caravans, and campers ✝️