thermophore arthritis pad type: muff/hand size (8"x17" rolled) battle creek 2489d type: muff/hand size (8"x17" rolled) features: -designed for arthritis sufferers. -new four-stage therapy switch provides optimum 20-minute treatments. -simple one-touch control features auto shut-off timer. -produces intense moist heat without adding water. -fast-acting therapy relieves pain and stiffness for hours. temperature: -hot. product type: -heat pack. dimensions: -petite / neck: 4'' w x 17'' d. -muff / hand: 8'' w x 17'' d. -medium / joint: 14'' w x 14'' d. -large / back: 14'' w x 27'' d. overall product weight: -1.5 lbs.