Compatible with all Melissa & Doug Water WOW! items, the Melissa & Doug Water WOW! Pen Pack gives kids new ways to color with water – includes a calligraphy tip for precise drawing and writing, 2 standard tips, a wide brush, a sprayer, and take-along cap with tether (Water WOW! pad not included) The 4 Water WOW! pens include 3 standard water reservoirs and 1 extra-large reservoir (all pen tips are interchangeable with any reservoir); an easy-grip pump sprayer includes an attached cap Special cap fits all pen tips for mess-free storage; cap also fits on all reservoirs and tethers to any Water WOW! spiral binding to keep pen attached while in use Water WOW! is a mess-free, reusable, travel-friendly activity – color with water, let pages dry, and color again and again (Water WOW! coloring activities sold separately, NOT included with this product) Makes a great gift, party favor, and rainy-day activity for toddlers and preschool girls and boys, ages 3 to 6, for hands-on, screen-free play and early learning