5071 Adapter,Website: , with two standard ground stoppersDescription: Adapter, with two standard ground stopper. used for connection.There are 7 sizes available. 10/19 Adapter with two standard ground stoppers, 14/23 Adapter with two standard ground stoppers, 19/26 Adapter with two standard ground stoppers, 24/29 Adapter with two standard ground stoppers, 29/32 Adapter with two standard ground stoppers, 34/35 Adapter with two standard ground stoppers, 40/38 Adapter with two standard ground stoppers.Material: GlassColor: clear glassSelling points: high quality   clear glassSpecification:upper ground stopperlower ground stopperLength of middle tube  mm10/1910/197014/2314/237019/2619/268024/2924/298029/3229/329034/3534/3510040/3840/38100