Designed for the OCTAPAD SPD-30 Lightweight and durable,Durable exterior materials,Fleece interior and thick foam padding,rubber at the bottom,Protect Instrument from Bumps during Transport and Carrying Padded Shoulder Strap and Padding Gripped Handle ensure Instrument can be Carried however the User Wishes to Two Separate Compartments for Storage,Durable Heavy-Duty Metal Double Zippers Design Easy for Opening and Closing SiZE:exterior Dimensions :24.8 X 12.2” X 5.1” Interior Dimensions : 23.6” X 11.4” X 4”