Please Note:

13mm, Inner Diameter 9mm

12mm, Inner Diameter 8mm
11mm, Inner Diameter 7.3mm

5pcs Slip-on Pool Cue TipsPlasticSnooker Cue Ferrule Billiards Accessories

Descriptions:
The ferrule is the connection between the leather tip and cue. It is to protect the wooden part of the cue and to connect the tip to the cue as a whole.
The length of the ferrule also affects the drive.

Specifications:
Style: 11mm/ 13mm
Product size: 24 x 11 x 11mm/0.94 x 0.43 x 0.43"
29 x 13 x 13mm/1.14 x 0.51 x 0.51"
Product weight: about 1.5g/ 2g
Product material: plastic