Handmade to order with Oeko-Tex Standard certified 100% cotton or linen in beautiful assorted florals and nature inspired colors, filled with rice and with or without organic lavender buds/ chamomile buds/ peppermint leaves and essential oils for a very light, relaxing scent. Shape is made to rest along the base of your neck and over shoulders, or around belly during pregnancy+birth to ease muscle tension and aid in relaxation and rest. ** The fabric for the bags are selected at random:) Fabric type and pattern will come in an assortment chosen at random (which can include fabric not pictured)! Instructions: HEATING PAD Heat in microwave for 30-second intervals until reaching desired temp COOLING PAD Freeze for about 2 hours Spot clean when necessary Each bag measures about 24" x 4". As these are handmade, dimensions may vary slightly About 1lb 13oz