While it looks like a pot of damping gel, the Remo Putty Pad is actually a portable, pocket-sized practise pad. Unfold it, slap it on and drill rudiments in silence on any tabletop or hard surface.
If your main instrument is a marching bass drum, we don't need to explain to you that practising at home in complete silence is virtually impossible. Then this Vic Firth Heavy Hitter Basspad practice pad might offer the solution!