Profession Training Tennis Ball With High Elastic Line For Beginner Tennis Exercise Device

Specification:
Model: Training Tennis

Material: Acrylic Felt Imports, Imports Of Rubber, 20% wool

Cord length: 4 Meters. Normal Size.

Elasticity: 138-147 cm

Promote The Deformation: 0.23-0.27 N

Diameter: 63.5-66.7 mm

Package Included:
1*Tennis ball