This model has 3 plates containing 7 different rectangular bubble levels. All levels use the same unmounted level that can be found here:  [https://www.amazon.com/dp/B07DMF57KM](https://www.amazon.com/dp/B07DMF57KM) (or 10x10x29mm square level equivalent).

The levels are:

• Small Level – convenient, for carrying in your pocket.
• Keychain Level – Same as small level but it has a side loop for hanging your car and house keys from. 
• String Level – Used for landscaping, plumbing, and masonry work. Hang on a tautly stretched string.
• Dual 90 Degree Level – gives you two level indications at once. Can be permanently attached, with 2 screws, to an RV or trailer for leveling.
• Pipe/Post Level – for leveling a post or pipe when setting it in the ground. Gives level indication from 2 sides. Attaches to the post or pipe with a rubber band.
• Torpedo Level –  a general-purpose level with three different level indicators.
• Small Pipe Level – Used to level small pipes or conduits. Attaches to the pipe or conduit with a rubber band.

Notes:

• To install the bubble level into the 3D printed model, start by inserting it relatively flat. Once in, tilt it (end-to-end) a very little and then push toward the lower end. Then flatten out the level and push down – with a little pressure it should move down into the holder.

If you’re looking for a round level, these can be found at: [https://makerworld.com/en/models/1486603-round-levels#profileId-1553309](https://makerworld.com/en/models/1486603-round-levels#profileId-1553309)