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MMB Grand Slam! Mystery Box
Included:
 
(6) Random Set Comic Books
(1) Guaranteed Authentic Signed Card
(1) Guranteed Authentic Card
(1) Gift Pack
(1) Full Card Set
(1) Random Item
 
+ The Triple Matt's Mystery Pack

MMB Grand Slam! Mystery Box

$69.99Price
Quantity
Price Options
One-time purchase
$69.99
Mystery Monthly
Subscribe & Save
$55.99every month until canceled

    Reviews

    Rated 3 out of 5 stars.
    Based on 2 reviews
    2 reviews
  • Jason bassSep 27, 2024
    Rated 5 out of 5 stars.
    Love it

    Got this box this moring...love it...got card that was just sold for $200 like 3 days ago....so that pretty much paid for the box itself...but loved everything in the box from the stickers to the comics..great box...worth it...

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  • Jason BryantJan 26
    Rated 1 out of 5 stars.
    Verified
    Not worth your time

    Subscription it's terrible. I've been charged twice and neither box was shipped. This is the second time this has happened. No response from anyone to help fix the issue. I want to cancel my subscription but there's no way to do that. Filing a dispute with my bank. Do not charge me anymore. Cancel my subscription.

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