With a 3-12mm cutting range, and a precision blade, the Bathmate Trim's ergonomic design is as versatile as it is simple to use. To be able to use the Bathmate range of pumps effectively, the area where the pump seals to the body can't be too hairy. If it is hairy then the pump simply will not make an effective seal. This prevents a vacuum from forming inside the vessel. So gents you must be manscaped. We are often asked how short the pubic hair needs to be to create a seal. The new Trim means you no longer have to guess. Included in the kit, as well as a full-size trimmer with 4 different guide combs, is a precision trimmer. The precision trimmer comes with an adjustable guide comb with 4 different lengths, and we recommend number 3 as the ideal cutting length to create a great seal. The reason for the precision trimmer is to make manscaping easier, the smaller head is more manoeuvrable and gets into the tighter areas. We realised that having two heads with variable length attachments means the Trim can be used all over the body wherever hair growth needs to be kept under control.