Ultimate Guard Boulder 60+ - Emerald
A near-indestructible deck box for 60 double-sleeved trading cards, finished in a soft-touch emerald green.

The Boulder 60+ Emerald has been one of the toughest and most securely closing deck boxes on the market for years, and the emerald soft-touch finish looks genuinely premium. Its one real drawback is the tight interior: with thicker or specialty sleeves, fitting cards becomes a squeeze.
Reasons to buy
- Extremely rugged build using 3 to 3.5 mm thick translucent plastic
- Highly secure nub-and-dimple closure that stays shut even when shaken
- Pleasant soft-touch coating and a classy translucent emerald look
- Modular: slots neatly into Ultimate Guard storage boxes like Arkhive and Flip'n'Tray
Reasons to consider
- Tight interior (around 68.3 mm) — one of the smallest in its class
- With thicker sleeves (e.g. Dragon Shield Mattes) or double-sleeving it becomes a real push
- No compartment for dice, tokens or life counters in the standard version
Build quality and closure
The Boulder stands out mainly for its build quality. The translucent plastic is a notably thick 3 to 3.5 mm, which leads reviewers to describe the box as practically unbreakable. The star feature is the nub-and-dimple closure: four small plus two larger sets of nubs and dimples click together and keep the box reliably shut, even through shake tests.
As a result, cards stay well protected from dust, moisture and knocks — handy for carrying in a bag.
Capacity and use
Officially the box holds 60 double-sleeved or roughly 80 single-sleeved cards. In practice the interior runs tight: at about 68.3 mm it is among the smallest in its category and over 7 mm narrower than a direct rival like the Satin Cube.
With thinner sleeves this is a non-issue. Pair thick outer sleeves with specialty inner sleeves, though, and it can be a genuine squeeze — so check your sleeve combination before buying.
Who is it for?
A great gift for the Magic, Pokémon or TCG player who wants a near-indestructible, stylish deck box and carries a deck in standard sleeves.
FAQ
How many cards fit inside?
Up to 60 double-sleeved or about 80 single-sleeved cards. Note: with thick or specialty sleeves the space is tight, so check your sleeve combination first.
Does it have a magnetic closure?
No. The Boulder uses a mechanical nub-and-dimple click system rather than magnets, which reviewers rate as very secure.


