20 frets bass guitar fret board

{"cid":"91179284","title":"Rickenback custom 4 strings bass guitar,rickenback electric bass, rickenback bass, tickenback guitar","imgUrl":"https:\/\/img.chinax.com\/nimg\/79\/1f\/4951f916d89e6bf00e3d3caa60de-200x200-1.jpg","attrs":{"Price":"350-$450\/pcs","Brand Name":"Grand","Model Number":"GB-66","Minimum Order Quantity":"1pcs","Delivery Time":"20 days","Certification":"CE, ROHS","Place of Origin":"China","Payment Terms":"TT, Paypal, Western Union, MoneyGram, LC","Supply Ability":"1000pcs\/month","Packaging Details":"Single Box with EPE Foam","Guitar Name":"Rickenback custom 4 strings bass guitar,rickenback electric bass, rickenback bass, tickenback guitar","Body":"Mahogany","Neck":"Maple","Fretboard":"Rosewood","Back\/Side":"Mahogany","Pickup":"Passive Closed Type","String Winder":"Closed Knob","Bow":"Brazil Wood"}}

{"cid":"91221703","title":"Electric Bass Guitar Neck Gloss Finish 20 Fret Maple Wood Bass Guitar Neck Adjustable Truss Rod","imgUrl":"https:\/\/img.chinax.com\/nimg\/92\/50\/51695217651f6ec3d41d652e039b-200x200-1.jpg","attrs":{"Price":"$33.21\uff08Exclude Freight\uff09","Brand Name":"Alnicov","Model Number":"GS30","Minimum Order Quantity":"10","Delivery Time":"1~3 Days","Place of Origin":"China","Packaging Details":"Box","Payment Terms":"T\/T","Supply Ability":"100PCS \/ 7Days","Application":"Jass Bass Guitar","Depth at Heel":"27.5 MM \/ 1.08 Inch","Fretboard Material":"Maple Wood","Color":"Yellow","Number Of Frets":"20","Fingerboard Material":"Maple Wood","Strings Number":"4","Length":"858 MM \/ 33.78 Inches"}}