A huge Mushroom shaped jug.

  • This type of mushroom is best utilized on a roof
  • Great to practice upside down knee-bars
  • Big enough to get both hands on and swing away
  • Requires 1 x 3.5" bolt.

If you are viewing this product on a mobile or tablet, you may be able to view this hold on your wall actual size! Tap the plus sign to try it yourself!

View on Your Wall

Depending on your MOBILE device and browser you may have the option to view this hold/set in Augmented Reality (AR) on your wall. Will not work on desktop.

How to view in AR:

  1. If you see the link "View on Your Wall", simply tap the link and wait for 1-4 seconds.  Link not visible?  Your device/browser is not AR capable.
  2. When your camera opens and the 3D model of the hold appears, point your camera at a well lit wall and the hold will be "placed" there.  If your camera does not open, your device/browser is not AR capable.
  3. Once placed, you can move your device around the hold, get close, move out, above, below, place your hand close to it, rotate using two fingers.

I have tested using an iphone 12 pro (ios 17.1) and latest versions of Chrome, Firefox and Safari and they work perfect.


  • Best results seem to be with Chrome, Firefox and Safari.
  • Wall/surface needs to be well lit
  • Seems to help for there to be something else on the wall, like art, light switch, door/window frame close to where you want to place object, needs reference points
  • If hold moves around, then it needs some reference point close by, see point above
  • Brick/textured walls work well
  • Object can be placed on flat surfaces too, but since it is a climbing hold it will be oriented vertically
  • You can rotate the hold with 2 fingers
  • Hopefully soon you will be able to place object on overhanging walls in the correct orientation
  • Not working but you feel it should?  There are so many variables that could prevent it from working, but the code I am using is written by a third party and I have zero control over it.
  • All bolt-on holds/sets require socket head type bolts, except for the Classic Footholds Set which requires countersunk head bolts.
  • All bolts Uncarved Block sells are imperial 3/8" diameter with UNC threads.
  • Unless otherwise stated, t-nuts are not included with holds or sets.
  • Any items shown in pictures other than holds are to show scale and are not included with purchase.
  • More information about hold colors click here.
  • Bolts optionally supplied with holds/sets are suited for 17-20 mm thick climbing walls, if you require longer bolts order these separately.
  • It is cheaper & faster to select random colours.


31 August 2018
I have this hold on a 35° wall and it is more complex than it looks. You have to be somewhat technical to find the best way to grab it each time as opposed to a simple jug. Its also really fun to hook onto with your feet!

Knee-bar facilitator

8 February 2018
Get your knee tucked into the side of this hold on a roof for a no-hands rest. Also big enough to get both hands on and swing.

My new favourite hold

By: on 25 July 2012
This is a brilliant piece of work that gives you some really interesting options on an extreme angled wall. Exercise your wrists at a very different angle, and you can wrap various body parts around it to brace or embrace. I'd like several of these for my roof!


By: on 18 July 2011
Really funky positive hold - great to grab from all angles. Excellent for practicing heel and toe hooks on a steep wall. Usual great feel and texture of the UCB holds!

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