Abstract: A wristband connection for a heart rate monitor specifically, a pin-hole connection. The wristband has a first section with at least one hole and the first section is attachable to the device, and a second section of the wristband attachable to the device. The second section has a locking device with a pin. A front wall and a back wall of the hole that are against the pin and transversely to the longitudinal axis in the longitudinal direction of the first section are inclined between an upper surface and a lower surface of the first section from the perpendicular direction between the upper surface and the lower surface towards the end of the first section attached to the device.

Abstract: A plastic structure (208) manufactured by injection molding, comprising a surface (208A) and a decorative print (202 to 204) at least partly covering the surface (208A). The decorative print (202 to 204) comprises, starting from the surface of the plastic structure (208), the following layers: a base color (204) and a texture (202) made of a functional colorant, whereby a critical angle exists, and at viewing angles larger than the critical angle with respect to the decorative print (200 to 204), the texture is transparent such that the base color (204) is visible.