The sizes shown refer to the head size of the tumba, the internal dimensions of all Protection Racket tumba cases take into account the circumference of the belly of the conga and all fixtures and fittings. Their bags have pod style openings. They unzip all the way around the lid at the top and also down the length of the case for easy entry. Carrying handle and padded rucksack straps fitted as standard. 7x10x2 in. zippered outer pocket.