Tapered turntable sheet made of butyl rubber combined with tungsten w/stroboscope and overhung guage.At its sensational appearance in 2010,Oyaide “MJ-12” aluminum turntable sheet attracted audiophile’s attention by its beautiful figure.Then they have started to produce its option item which enhances the performance of MJ-12,that was the butyl rubber 1mm thin turntable sheet, BR-ONE.Now Oyaide had done many butyl rubber compound testand they found , to enhance BR-ONE'svibration suppresion, tungsten is the material that can improve sound quality.They also found that MJ-12's tapered shape and tuning hole layout pattern on it is also effective with rubber material.With these findings taken into design,Oyaide has developed new turntable sheet , BR-12. BR-12 is a vibration-damping butyl rubber sheetthat takes its tapered shape and tuning hole layout after MJ-12, Pyaide's aluminum turntable sheet.With high-friction butyl rubber it has great grip and great contact to vynl disc to avoid slipeven when its used with high pressure stylus.From center to perimeter, it has a taper of 1.0 degree elevated angle.It will correct vynl disc's warpage by the rubber sheet tightly sticking to it.Then stylus movement will get stable to trace the groove.The tapered sheet has 18 tuning holes, it contributes more to improve sound quality.The holes work also as finger rest when removing 10inch or EP discs.Its diameter has been made 294mm to make it easy to remove LP disc(300mm).Thickness is made 5mm , same as to most of the turntable matts that come with record players,it does not require height adjustment of tone arm when you replace it.Overhang gauge comes withPP coated paperstroboscope and help you to adjust your record player. Precautions for use- There could becolor irregularity or abrasions on the surface made on manufacturing stage but it is the property of the butyl rubber and does not affect any performance.-When it gets dirty, washed with water and wipe moisture with a soft cloth.- Do not wipe using oil, organic solvent, or alcohol asthere is a risk to deteriorate the rubber.- Stroboscope and overhang gauge is printed onmount of the package, not on the body BR-12 itself.-To use the stroboscope, fluorescent lights(non-inverter type), strobe light organ is recommended accoringly.- For proper value of overhang gauge, please refer to the manual of your record player, the tone arm. SpecificsMaterial:Butyl rubber (with tungsten)Thickness: 5mmDiameter: 294mmTaper angle: 1.0 degWeight: 385ｇStroboscope:（33/45/78 RPM、50/60Hz 、PP coated paper、Printing on the package）Overhang gauge:（measurement range 5~30mm）Encasement:BR-ONEx1, stroboscope&overhung gauge x 1Release Date:2011/8/20ShippingShipped via registered airmail from Japan to WORLDWIDEShipping to South America, Africa, please feel free to contact for fee.We are VERY WILLING to DISCOUNT for combined shipping fee.Please contact with your specific inquiries.PaymentPlease pay with PAYPAL.About usWe are located in Saitama Japan, a suburban city of Tokyo. Very convenient place to find item, information about Japan.We sell Japanese goods here. Thanks for looking!