These coloured 3M Post-it notes have a standard size of 76mm x 76mm. The super sticky notes have an adhesive edge that is more powerful than standard Post-its; ideal for notes you want to keep hanging around for a long time. These note sheets also stick better to difficult surfaces. The package contains 12 blocks with 90 Post-its each (2 x lime, 4 x fuchsia, 2 x turquoise, 2 x yellow and 2 x purple).