I purchased 3 of the cage mounted water bottle holders in the large size to fit my previously installed water bottles Doing water bottles was my 'pet hate job' what with the fiddley wires or springs sent to hold them in place, but after seeing these in action on 'Masons Cavies' I decided to invest in 3 of these babies...I can only say they have transformed my guinea pig maintenance world, they are so easy to install & just so easy to use full stop, nothing awkward or fiddley about having to re-fill water bottles anymore, they just pull up & out & slot back in with the greatest of ease & the best thing is you can angle the sip nozzle to face a particular direction. I would rate a lot more stars than 5 for this very simple but effective water bottle aid, a massive 10/10 from me.
Lisa W, Kidderminster, West Mids.