Biological sample receivers

A biological sample receiver comprising:

• a planar substrate for receiving a biological sample including a surface area for accepting a biological sample;
• an envelope at least partially surrounding the substrate, wherein said envelope includes at least a first panel, the first panel including an opening for facilitating the deposit of a biological sample onto said surface area;
• and
• a protective cover formed around the envelope, said protective cover including a third panel, a fourth panel, and a closure panel, the protective cover moveable at least to a first position where the opening is at least partially concealed and to a second position where the opening is exposed at least sufficiently to allow said deposit;
• the device being characterised in that the first panel, the third panel, the fourth panel, and the closure panel are formed from a single sheet of folded material, with the third panel being connected to the first panel at a second fold, the fourth panel being connected to the third panel at a third fold between the third and fourth panels, the third fold being spaced from the second fold, and the closure panel being connected to the fourth panel at a fourth fold between the fourth panel and closure panel, the fourth fold being spaced form the third fold,
• wherein the second fold includes a weakness configured to allow the slidable separation of the first panel from the third panel.