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+# Buying hardware from us
+Getting all of the hardware can be very wasteful, since you'll often only need a small number of parts, and these parts tend to come in large packs, meaning you'll be spending lots of money for spares you may not need. That's why we sell sets of Ploopy Mouse hardware **TODO put link to ploopy.co store here**. Here's why that's great for you:
+
+- Everything is guaranteed to fit together perfectly
+- You'll end up saving money - probably quite a bit of money - by not spending on spares
+- You'll get a few spares from us anyways
+
+Your call. You'll sort it out.
+
+# Getting your own hardware
+This guide was a bit light on detail in the other sections, and that's because the hardware has to conform to many specifications. They'll all be listed here.
+
+First, a complete list of all the hardware you'll need:
+
+- 2x M3x12mm flat-countersunk machine screws
+- 4x M3x6mm socket cap machine screws
+- 6x heat-set threaded inserts
+- 3x roller bearings
+- 2x metal dowels
+- 1x silicone ring
+- 4x friction pads
+- 1x snooker ball
+
+We'll be going over all of them in detail. There will be mentions of *critical specifications*; if you're going to be sourcing your own parts, **you must get parts that conform to the critical specifications**. If you go off-menu, the parts will not fit the way that we intended when we designed the mouse. That might mean that your mouse **doesn't work**.
+
+Let's get cracking.
+
+## M3x12mm flat-countersunk machine screws
+Here are the critical specifications:
+
+- M3
+- 0.5mm thread pitch
+- Any length between 8mm and 16mm
+- 5.6mm head diameter
+- 1.65mm head height
+- 90 degree countersink angle
+
+## M3x6mm socket cap machine screws
+Here are the critical specifications:
+
+- M3
+- 0.5mm thread pitch
+- 6mm length
+- 5.5mm head diameter
+- 3mm head height
+
+## Heat-set threaded inserts
+Here are the critical specifications:
+
+- M3
+- 0.5mm thread pitch
+- 4mm drill bit size
+- Open end type
+- Brass, or any other material that transmits heat well
+- 4.8mm installed length
+
+## Roller bearings
+Here are the critical specifications:
+
+- 3mm inner diameter
+- 6mm outer diameter
+- 2.5mm thickness
+
+## Metal dowels
+Here are the critical specifications:
+
+- 3mm diameter
+- 18mm length
+
+## Silicone ring
+We use decorative rings for this. If it's silicone and size 10 (or 19.8mm in diameter), it'll probably work, so long as it can be cut to size.
+
+## Friction pads
+Here are the critical specifications:
+
+- Circular shape
+- 3/4" diameter
+- 1/16" thickness
+- Non-slip
+
+## Snooker ball
+So long as it's a 1.75-inch diameter (44.45mm) ball, it'll work.
+
+## That's it!
+Ordered everything? Great! That's another thing dealt with. Head over to [[1. Introduction]] to keep on keeping on.
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