[**brk-client**](../README.md) *** [brk-client](../globals.md) / MempoolBlock # Interface: MempoolBlock Defined in: [Developer/brk/modules/brk-client/index.js:368](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L368) ## Properties ### blockSize > **blockSize**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:369](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L369) Total block size in weight units *** ### blockVSize > **blockVSize**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:370](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L370) Total block virtual size in vbytes *** ### feeRange > **feeRange**: `number`[] Defined in: [Developer/brk/modules/brk-client/index.js:374](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L374) Fee rate range: [min, 10%, 25%, 50%, 75%, 90%, max] *** ### medianFee > **medianFee**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:373](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L373) Median fee rate in sat/vB *** ### nTx > **nTx**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:371](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L371) Number of transactions in the projected block *** ### totalFees > **totalFees**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:372](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L372) Total fees in satoshis