The same disk magnets are used in parts of the following products:
Vernier Dynamics System (VDS, discontinued)
Dynamics Cart and Track System (DTS)
Dynamics Cart and Track System (DTS-LONG)
Dynamics Cart and Track System with Go Direct® Sensor Carts (DTS-GDX)
Dynamics Cart and Track System with Go Direct® Sensor Carts (DTS-GDX-LONG)
Dynamics Cart and Track System with Motion Encoder (DTS-EC)
Dynamics Cart and Track System with Motion Encoder (DTS-EC-LONG)
Dynamics Cart Replacement Tabs (DTS-TABS)
Eddy Current Brake (DTS-ECB)
Go Direct® Sensor Cart Accessory Kit (GDX-CART-AK)
Adjustable End Stop (AS-VDS)
Specifications
Dimensions | Diameter 0.5 in Thickness 0.25 in |
Grade | N35 |
Theoretical flux density at surface | 4278 G |
The manufacturer supplies the following information:

Related:
How are magnets installed in the Adjustable End Stops?