BackPack Specs
BackPack Height: 0.79 inches (2 cm)
Width: 7 inches (17.8 cm)
Depth: 3.9 inches (10 cm)
Weight: .04 pounds (.18 kg)
Max Capacity 3.5 pounds (1.59 kg)
Insert Compatability 21.5" iMac (late 2012-Current):
Use #6 inserts for high install
Use #1 inserts for low install

27" iMac (late 2012-Current):
Use #1 inserts for high install
Use #4 inserts for low install

27" Thunderbolt Display/ LED Cinema Display:
Use #4 inserts

21.5" iMac (late 2009-late 2011):
Use #3 inserts

27" iMac (late 2009-mid 2011):
Use #4 inserts

Legacy iMacs/Apple Displays:
Additional Fit inserts that offer compatibility for legacy Macs
may be available.
What's in the Box BackPack shelf
Vertical support pegs (x4)
BackPack stand clips (x2)
Clip fit inserts (x8)
Non-slip shelf pad
Owner's Guide