The GSI Outdoors Coffee Rocket is an incredibly clever, one person pour-over camp coffee maker that collapses to nest inside your favourite camp mug. � 230 ml drip cone is designed to funnel piping hot water into an easy-to-clean, stainless steel filter. � Hopper holds up to 10 grams of medium grind coffee for a quick and robust brew. � Clever compacting design collapses to nest within GSI Outdoors Infinity Backpacker Mug and similar vessels. � Collapses to 9.6 cm; Expands to 14 cm high. � High-efficiency screen and snorkel combine for fast, flavourful brewing and effortless clean-up. � Sturdy, notched, folding legs grip nearly any mug and hold the drip cone above the already brewed coffee for perfect, mud-free brewing. � Material: Nylon, Clear Polypropylene � Dimensions: 8.4 cm x 8.4 cm x 9.6 cm