L-inner diameter 1.7cm UK reservation 6-8 weeks; N-inner diameter 1.8cm UK reservation 6-8 weeks; Q-Inner diameter 1.9cm, UK reservation 6-8 weeks; W-inner diameter 2.1cm, UK reservation is 6-8 weeks; Y-inner diameter 2.2cm UK reservation 6-8 weeks; Q inner diameter 1.9cm spot; L-inner diameter 1.7cm in stock; W-Inner diameter 2.1cm in stock; T-inner diameter 2.0cm, UK reservation 6-8 weeks