1 / 7Meryndou 4S-Colorful Aluminum Graded Card Storage Box
The Meryndou 4S-Colorful graded card storage box is a lockable aluminum case listed for 140+ graded slabs. Its claimed capacity also covers toploaders and magnetic holders, with adjustable sponge partitions for different formats.
At a glance
- Listing claims capacity for 140+ graded slabs, 640+ toploaders or 165+ magnetic holders, depending on what is stored.
- Adjustable sponge partitions are described as accommodating different card holders and slabs.
- A combination lock and aluminum body are listed. The manufacturer also describes a foam-lined interior and reinforced corners.
Reference price: $55.99
Price checked: Nov 14, 2026
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Pros and cons
Pros
- Multiple stated capacities make it suitable for organizing graded slabs or other card holders in one case.
- Adjustable partitions offer flexibility for different card formats.
- Combination locking and a listed water-resistant rating provide useful features for storage and transport.
Cons
- Its listed dimensions of 17"L x 14"W x 8"H call for a sizeable storage space compared with a compact deck box.
Technical specifications
12 specifications| Brand | Meryndou |
|---|---|
| Model | 4S-Colorful |
| Form factor | Rectangular |
|---|---|
| Dimensions | 17"L x 14"W x 8"H |
| Material listed | Aluminum |
|---|---|
| Water resistance listed | Water Resistant |
| Lock type | Combination |
| Closure type | Buckle |
| Graded card capacity claimed | 140+ |
|---|---|
| Toploader capacity claimed | 640+ |
| Magnetic holder capacity claimed | 165+ |
| Compatible graded card brands claimed | PSA, CGC, BGS, and SGC |
What to know before buying
- Capacity figures are manufacturer claims and may vary with holder size and partition arrangement. The water-resistant listing does not specify a protection level or conditions, so do not assume the case is waterproof.
What’s in the box
Included- Case body
Who is it for?
A good fit for
- Collectors seeking a single case for graded slabs, toploaders or magnetic holders.
- Buyers who want adjustable internal organization and a combination lock for card storage.
Less suited to
- Anyone who needs a compact case for a small number of cards or a stated waterproof rating.
Customer reviews on Amazon
- 5 stars
78% 78% - 4 stars
13% 13% - 3 stars
0% 0% - 2 stars
9% 9% - 1 star
0% 0%
Aggregate ratings lean positive, with many five-star ratings, but a smaller share are two-star. Without review details, the ratings cannot establish what customers liked or disliked. They also do not confirm the listed capacity, lock, or water resistance, which buyers should assess against their storage needs.
Frequently asked questions
How many graded cards does the case hold?
The listing claims capacity for 140+ graded slabs. Actual capacity can depend on slab dimensions and how the partitions are arranged.
Can it store toploaders or magnetic holders?
The manufacturer claims capacity for 640+ toploaders or 165+ magnetic holders, and describes adjustable sponge partitions for different formats.
What kind of lock does it have?
The listed lock type is combination. The listing does not provide a specific security rating.
Is the case waterproof?
It is listed as water resistant, but no rating or test conditions are supplied. That claim does not establish that it is waterproof.
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