BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags
BLK BOX Strongman Sandbags

BLK BOX Strongman Sandbags


Regular price£39.00
Tax included.
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Take your training up a notch with a BLK BOX Strongman Sandbag. Available in 9 different sizes, these Strongman Sandbags can be filled with sand and used for a wide variety of movements including overhead presses, bear hug squats, zercher holds, floor presses and shoulder squats to name a few.

The heavy duty vinyl fabric has been double stitched for added durability and ensures no sand leaks during use. There is a double stitched, strong zip with a velcro strap, and an internal stitched filler bag that is velcro sealed, designed to ensure no sand is lost. The nature and style of these bags means they are easy to obtain a firm grip and pick up from the ground, compared to the likes of a pre-filled ball which may be more difficult to grip.

The BLK BOX Strongman Sandbags are a great alternative to the BLK BOX D-Balls as they are refillable, meaning you can easily empty the sand out, and transport the empty bag, and then refill again when required. You can also fill your bag to its max capacity using a set of scales, or half/quarter fill it, depending on the intensity of workout you want. Please note these bags are designed to be dropped, not slammed.

We aim to dispatch and deliver all in stock items within 2-10 working days depending on your location in the UK & Ireland.


We ship our orders via Parcel / 2 Man Delivery or Pallet depending on the size of your order and shipping fees will be calculated at checkout. To track your order click here for orders placed online; Track an Online Order and here for orders placed via our Sales team; Track an Offline Order


All deliveries are kerbside, it will be your responsibility to remove the items from the pallet on arrival and dispose of the pallet. You will receive an email from our Logistics team with a date of delivery. If you require an alternative delivery date or if there are any access restrictions to your property, please let us know within 24 hours before delivery by emailing Please be aware failure to do so may result in additional delivery charges.


Some of our training equipment is manufactured here in our HQ. The lead times on these products range from 25-35 working days and are identified by having the MADE IN BELFAST badge.


We understand at times due to size, colour or type some items might not be the right fit for you. We are happy to accept a returned item within 30 days from the date of you receiving the item for a refund or exchange.

To start a return click here; BLK BOX Returns

  • Bag Height Diameter:
    • 20kg 120mm 400mm
    • 30kg 170mm 400mm
    • 40kg 220mm 400mm
    • 50kg 270mm 400mm
    • 60kg 320mm 400mm
    • 70kg 380mm 400mm
    • 80kg 430mm 400mm
    • 90kg 480mm 400mm
    • 100kg 540mm 400mm

Is filler material included?

No, sand is not included. We recommend filling with kiln dry sand which can be bought at most builders merchants.

What material can these bags be filled with?

These should be filled with sand only. Do not use pebbles, gravel or any other aggregate material.

What material is the bag made from?

These sandbags are made from a double stitched, heavy duty vinyl fabric that is highly durable. There is an inner stitched filler bag with velcro fastening and a double stitched zip ensuring no loss of sand during use. 

What exercises can I do with these sandbags?

This is a highly versatile product and can be used for a wide variety of movements including: 

• Overhead press

• Ground to shoulders

• Floor press

• Bear hug squats

• Shoulder squats

• Lunges

• Shoulder carries

• Sandbag get-ups

• Zercher holds.


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