JillandJackKids.com

[The Race Car Whistle's] oversized wheels glide smoothly over surfaces and its 6-inch-long body is easy for small hands to grasp. The whistle itself puts out a loud, pure sound that isn't shrill or piercing. I love that I never have to cover my ears when my kids are playing with these or their other Green Tones instruments.
Green Tones Musical Instruments for Children
[The Race Car Whistle's] oversized wheels glide smoothly over surfaces and its 6-inch-long body is easy for small hands to grasp. The whistle itself puts out a loud, pure sound that isn't shrill or piercing. I love that I never have to cover my ears when my kids are playing with these or their other Green Tones instruments.