Made by Koplow Games, these over-sized 55mm spin-down d20 dice are perfect for tracking life totals. They are the same ones we use in LibertyMTG videos!
Koplow 14797 D20 Single 55 mm Countdown Blue Bagged
Aetherworks
Buy D&D D20 Dice, 20 Sided Dice for Sale
Countdown Dice
Giant d20 (Ruby Red) Huge 55mm Game Die – Dark Elf Dice
Jumbo 55mm Spindown D20: Transparent Ruby/Gold - Shuffle and Cut Games
D20 Dice — Pippd
Koplow
These 20-sided 19mm red dice are numbered 1 to 20 - each side has a number etched into the surface and painted white. The top number displayed on a roll is the number used for that turn. The 6 and 9 are marked with a dot at the lower right of the number to avoid confusion between the two numbers.
Koplow Games Set of 5 Twenty Sided 19mm D20 Opaque Dice RPG D&D Red with White Numbers Die
55mm D20's – Kraken Dice