Spot rubber finished almost unchanged on Tuesday. RSS 4 quoted steady at ₹133 a kg, according to traders. The grade improved to ₹133 (132) and ₹130 (₹129) respectively, according to the Rubber Board and dealers. RSS 3 (spot) firmed up to ₹114.61 (₹113.84) at Bangkok. April futures closed at ¥188.5 (₹114.17) on the Tokyo Commodity Exchange. Spot rubber rates (₹/kg): RSS-4: 133(133); RSS-5: 131 (131); Ungraded: 125 (125); ISNR 20: 124 (124) and Latex (60% drc): 106.75 (105.50).