COLORBOK-Precious Hands Plaster Molding Kit. Preserve the years in this 3-dimensional keepsake. Each kit contains 1.4 ounces of 3-D gel; 1.5 lbs Plaster of Paris; Heart Shaped molding tray; wall mount; creative tips sheet and easy to follow instructions. An easy 15 minute project! From infant to 12 years. Adult supervision required.