Athletes having this bowlingball approved and in use
Hammer Effect

Name	Fed	Playing with	No. of this ball
Denise Blankenzee	Netherlands	Righthanded	1
Emma Friant	France	Righthanded	1
Kaisa-Ly Lee	Estonia	Dual Righthanded	1
Marie Matczak	France	Righthanded	1
Mónica Jiménez	Spain	Righthanded	1