designers and developers have considered sensory feedback and material properties (such as texture and hardness) as important factors in the design process (Klatzky and Lederman, 1992 and Klatzky and Lederman, 1993). With the widespread use of direct-touch mobile devices such as smartphones, tablet PCs, mobile handheld game consoles, and car navigation systems, users have accepted touch-based interactions with a stylus or the fingers as the natural method of handling such devices (Wintergerst et al., 2010).