Calling a dab mat a base pad would be a fair estimate. A silicone dab pad is a simple yet effective tool for a variety of purposes especially for concentrates.
Silicone Mat Cover for Rolling Tray Dab Gear - Pulsar – Pulsar Vaporizers
420 Science Rolling Tray With Magnetic Lid / $ 19.99 at 420 Science
Everything you need to know about Dab Mat — Fleur Cannabis
Dab Mat; a 101 to What it Is and How to Use  - PlainJane
Silicone Dab Pads and Mats, Blazy Susan
Focus V x Blazy Susan Wooden Dab Tray
Metal Rolling Tray Playground — 3rdi Dab Mats
Dunkee's Silicone Dab Mats - Mary Jane's Headquarters
420 Science Rolling Tray With Magnetic Lid / $ 19.99 at 420 Science
Metal Rolling Tray Slothin — 3rdi Dab Mats
Smoking Accessories - Dab Mats & Banger Trays
Hybrid Rolling and Dab Tray – V Syndicate
420 Science Rolling Tray With Magnetic Lid / $ 19.99 at 420 Science
Smoking Accessories - Dab Mats & Banger Trays