EFFECTIVE, NO PAINKILLER RELIEF: Heating pad can deliver heat that penetrates deep into the affected area, and help relieve back pain, period cramps, neck/shoulder pain, arthritis, joint aches, sciatica, and aches due to age SAFETY PROMISE: Using PTC heating wire offers the safety promise of overheating protection. Also, our electric heating pad complies with CE standards. Please read the instructions before use, to extend the last 6 HEAT SETTINGS AND 4 TIMER SETTINGS: Heating pads for cramps heats up fast with 6 heat settings from 104 -149 , you can control the temp accurately. Also have 4 auto shut off options, 1, 2, 4, and 6 hours, a great safety feature LUXURIOUS SOFT FLANNEL: The heating pad for neck and shoulder is made of soft, plush fabric. It is flexible to wrap around any part of the body. Provide incredibly soothing, calming, and comforting KEEPING FAMILIES HEALTHY: Heat pad is great to use after a workout, household work, or just relaxing at the end of a long day working. And also is great for warmth when it's cold, saving on the heating bill. Heating pad xl is the best gift for Christmas, Thanksgiving, Anniversaries, Mother's Day, Father's Day, or Valentine's Day.